Question 5: ________ has debated the merits of artificial reefs with members torn between their desire to support natural coastal environments and opportunities to enhance the quality of surfing waves.
Question 7: Due to intense use by the expanding human population, beaches are often dumping grounds for ________ and litter, necessitating the use of beach cleaners and other cleanup projects.
Question 9: In the ________, many popular beach resorts were equipped with bathing machines because even the all-covering beachwear of the period was considered immodest.